I have looked at many images of a 69 firebird engine compartment, and haven't seen one with it mounted on the firewall. I can't see why it would be engineered differently. Looking at the pic though i don't see a heater box there either?

that dash area doesn't look quite right, maybe modified? Pretty interesting to see someone move the battery tray to the firewall. I have seen it relocated to the trunk, but first time seeing someone relocate to the firewall.

Unfortunately the previous owner replaced the original dash by 68 Camaro dash from the junk yard.The previous owner relocated the battery tray to the firewall. I don't know why??

Interesting...Looks more like a 67 Camaro/Firebird dash panel. Needs some forensic work done to determine what year it is. TT indicates a very early built 69 and if it is, what happened to the original dash panel? Do we have a mystery on our hands? I'm intrigued.

Unfortunately the previous owner replaced the original dash by 68 Camaro dash from the junk yard.